CN102071709B - Foundation system capable of controlling settlement - Google Patents

Abstract

A controllable settlement foundation system, including basic components, capsules and control devices. The basic components are composed of a top cover and side walls. The capsule is made of rubber. The capsule is provided with holes and connected to the valve through pipes. A displacement sensor and a pressure sensor are arranged in the capsule and are respectively connected to the control device through wires. The capsule is provided with a hook and connected to the bottom surface of the top cover of the basic component. The advantages of the present invention: through the capsule structure between the foundation and the foundation roof, the deformation of the foundation is replaced by a water-filled capsule, thereby ensuring the levelness and stability of the foundation. The device realizes automation through sensors and control systems, It can effectively increase the reliability of the foundation, thereby improving the bearing capacity and stability of the foundation. The foundation settlement control effect is outstanding, the equipment is simple to use, the construction is simple, the economic benefit is obvious, and the comprehensive project cost is low. It is suitable for buildings, ports, oceans, Control method of foundation settlement in water conservancy and bridge engineering.

Description

A Foundation System with Controlled Settlement

Technical field

The invention belongs to foundation settlement technology in construction, port, ocean, water conservancy and bridge engineering, in particular to a foundation settlement control system.

Background technique

At present, in port, ocean, water conservancy and bridge engineering, especially on silty soil, the problem of foundation settlement is the main problem of foundation application. In such areas with unfavorable geological conditions, due to the structural characteristics of the foundation, uneven settlement of the foundation is easy to occur.

Contents of the invention

The purpose of the present invention is to address the above existing problems and provide a method for controlling foundation settlement. This method is used to intelligently control the foundation settlement, thereby effectively controlling the foundation settlement and improving the bearing capacity and stability of the foundation. The control method The device is simple, can realize automatic intelligent control, and has obvious economic benefits.

Technical scheme of the present invention is:

A controllable settlement foundation system, including foundation components, capsules and control devices, the foundation components are composed of a top cover and a side wall, which is a sealed hollow structure with an opening at the bottom; the top cover is circular or regular polygonal, and the top The diameter of the cover is not less than 20m, the ratio of the diameter of the top cover or the maximum intersection line to the height of the side wall is not less than 3, and the material of the basic component is steel or concrete; the capsule is made of deformable elastic material, and there is no water in the capsule. It is a flat body and the area of the capsule is the same as the area of the bottom surface of the basic top cover. When the capsule is filled with water, it needs to withstand at least 1 atmospheric pressure. The capsule is provided with holes and connected to the valve above the top cover through pipes. Displacement sensors and pressure sensors are installed in the capsule and are respectively connected to the control device above the water surface through wires. At least one displacement sensor and one pressure sensor are installed in every ^10m2 range in the capsule. Top cover bottom connection.

The deformable elastic material for preparing the bladder is rubber.

The capsule adopts a sub-compartment structure, and each sub-compartment is provided with a displacement sensor and a pressure sensor.

Working procedure of the present invention:

The capsule body is connected with the bottom surface of the foundation top cover through the hook provided on the capsule body, installed before the foundation construction, and installed together with the foundation in place during construction. After the foundation components are installed and leveled, once the foundation subsidence begins to occur, the displacement sensor in the capsule between the foundation roof and the foundation will start to sense, and the valve will be opened by the control device to start injecting water into the capsule to fill the deformation zone of the foundation. When the pressure is lower than the preset pressure of the pressure sensor, pressurize by injecting water. When the volume of water injected is the same as the settlement of the foundation, the displacement sensor in the capsule senses that the foundation is restored to a level state, and the valve is closed by the control device to stop water injection. Monitor the settlement changes of the foundation and fully control the levelness of the foundation.

The advantages of the present invention are: through the capsule structure between the foundation and the foundation top cover, the deformation of the foundation is replaced by a water-filled capsule, thereby ensuring the levelness and stability of the foundation, and the device realizes automation through sensors and control systems , can effectively increase the reliability of the foundation, thereby improving the bearing capacity and stability of the foundation, the foundation settlement control effect is outstanding, the equipment is simple, the construction is simple, the economic benefit is obvious, and the comprehensive project cost is low. This method is applicable to the control method of foundation settlement in construction, port, ocean, water conservancy and bridge engineering.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the foundation system of the controlled settlement.

Fig. 2 is a schematic diagram of the working condition of the foundation system of the controllable settlement.

In the figure: 1. Basic component 2. Capsule 3. Control device 4. Top cover 5. Side wall 6. Opening 7. Pipe 8. Valve 9. Displacement sensor 10. Pressure sensor 11 Hook

Detailed ways

Example:

A controllable settlement foundation system, including a foundation component 1, a capsule body 2 and a control device 3, the foundation component 1 is composed of a top cover 4 and a side wall 5, and is a sealed hollow structure with an opening at the bottom; the top cover 4 is Circular or regular polygon, the diameter of the top cover 4 is 30m, the height of the side wall 5 is 6m, the material of the basic component 1 is concrete; the capsule body 2 is made of deformable elastic material rubber, and there is no water in the capsule body 2 It is a flat body and the area of the capsule body is the same as the area of the bottom surface of the base top cover 4. When the capsule body 2 is filled with water, it needs to bear 1 atmospheric pressure. The valve 8 is connected to the valve 8, the capsule body 2 is provided with a displacement sensor 9 and a pressure sensor 10, which are connected to the control device 3 above the top cover 4 through wires, and at least one displacement sensor 9 and pressure sensor ¹⁰ are provided in the capsule body 2 for every 10m2. A pressure sensor 10, the capsule body 2 is provided with a hook 12 and connected with the bottom surface of the top cover of the basic component.

In this embodiment, the displacement sensor adopts the small-range displacement sensor PTR series, the pressure sensor adopts the high-precision general pressure sensor MD-G series, and the control system is realized through the protel design platform. The basic system has simple equipment, simple construction, obvious economic benefits, and low comprehensive engineering cost, and is suitable for the control method of foundation settlement in construction, port, ocean, water conservancy, and bridge engineering.

Claims (3)

1. the foundational system of a controlled sedimentation, it is characterized in that: comprise basic component, utricule and control device, said basic component is made up of top cover and sidewall, is the hollow structure of sealing, bottom opening; Top cover is circle or regular polygon, and the diameter of top cover is not less than 20m, and the ratio of the diameter of top cover or maximal phase intersection and sidewall height is not less than 3, and the material of basic component is steel or concrete; Said utricule is processed by deformably resilient material; The area that in the utricule when anhydrous is bluff body and utricule is identical with basic top cover base area, need bear at least 1 atmospheric pressure when charging into water in the utricule, and utricule is provided with perforate and is connected with valve more than being arranged at top cover through pipeline; Be provided with displacement transducer and pressure sensor in the utricule and be connected with control device more than being arranged at the water surface through lead respectively; When the ground sedimentation Once you begin took place, the displacement transducer in the utricule between basic top cover and the ground began induction, began the deformed area that in utricule water filling is full of ground thereby open valve through control device; When less than the pressure sensor preset pressure; Come supercharging through water filling, when the volume of water filling was identical with settlement of foundation, the displacement transducer in the utricule was sensed after the basis recovers the leveling state; Stop water filling through the control device valve-off, every 10m in the utricule ²Scope is provided with a displacement transducer and a pressure sensor at least, and utricule is provided with hook and is connected with the top cover bottom surface of basic component.

2. according to the foundational system of the said controlled sedimentation of claim 1, it is characterized in that: the deformably resilient material of said preparation utricule is a rubber.

3. according to the foundational system of the said controlled sedimentation of claim 1, it is characterized in that: said utricule adopts and divides chamber structure, is equipped with displacement transducer and pressure sensor in each branch storehouse.

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